102021119972 has 24 divisors (see below), whose sum is σ = 179370572472. Its totient is φ = 50772550400.

The previous prime is 102021119971. The next prime is 102021120023. The reversal of 102021119972 is 279911120201.

It can be written as a sum of positive squares in 4 ways, for example, as 25880443876 + 76140676096 = 160874^2 + 275936^2 .

It is not an unprimeable number, because it can be changed into a prime (102021119971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2647322 + ... + 2685582.

It is an arithmetic number, because the mean of its divisors is an integer number (7473773853).

Almost surely, 2^102021119972 is an apocalyptic number.

It is an amenable number.

102021119972 is a deficient number, since it is larger than the sum of its proper divisors (77349452500).

102021119972 is a wasteful number, since it uses less digits than its factorization.

102021119972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41359 (or 41357 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 35.

The spelling of 102021119972 in words is "one hundred two billion, twenty-one million, one hundred nineteen thousand, nine hundred seventy-two".